[pri'delә]
n.
祭坛的台[梯], 绘画[雕刻]

Predella \Pre*del"la\, n. [It.]
The step, or raised secondary part, of an altar; a
superaltar; hence, in Italian painting, a band or frieze of
several pictures running along the front of a superaltar, or
forming a border or frame at the foot of an altarpiece.